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A371516 as a simple table

na(n)
01
13
215
382
4477
52901
618235
7117555
8773085
95166478
1034987170
11239570655
121655933060
1311538839130
1480971109712
15571702698185
164058556404958
1728951715755830
18207424064434502
191491898838023884
2010768487956456506
2177977009814421534
22566310026687320290

[1,3,15,82,477,2901,18235,117555,773085,5166478,
 34987170,239570655,1655933060,11538839130,
 80971109712,571702698185,4058556404958,
 28951715755830,207424064434502,1491898838023884,
 10768487956456506,77977009814421534,
 566310026687320290]